The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 05, 2023
Filed:
Apr. 05, 2018
The Japan Steelworks, Ltd., Tokyo, JP;
Tohoku University, Sendai, JP;
Kouhei Kurimoto, Muroran, JP;
Quanxi Bao, Muroran, JP;
Mutsuo Ueda, Muroran, JP;
Yuji Sasagawa, Muroran, JP;
Masaya Morimoto, Muroran, JP;
Toru Ishiguro, Sendai, JP;
Shigefusa Chichibu, Sendai, JP;
JAPAN STEEL WORKS M&E, INC., Muroran, JP;
TOHOKU UNIVERSITY, Sendai, JP;
Abstract
A pressure container for crystal production having excellent corrosion-resistance is provided. This pressure container produces crystals within the container using a seed crystal, a mineralizer, a raw material, and ammonia in a supercritical state or a subcritical state as a solvent. The pressure container has Ag present over the entire surface of at least the inner surface thereof in contact with the solvent. The Ag can be disposed by one or a combination of two or more among, for instance, Ag lining, Ag welding, and Ag plating. The mineralizer is preferably a fluorine mineralizer containing no halogen atoms other than fluorine.